Home / 104,877.18-144,732.09-57,130.50

Finding the Fourth Proportional to 104,877.18, 144,732.09 and 57,130.50

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Solution

The fourth proportional to 104,877.18, 144,732.09 and 57,130.50 is: 78,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.18 : 144,732.09 = 57,130.50 : x
  2. Step 2: Convert to fraction form
    104,877.18/144,732.09 = 57,130.50/x
  3. Step 3: Cross multiply
    104,877.18x = 144,732.09 × 57,130.50
  4. Step 4: Simplify right side
    104,877.18x = 8,268,616,667.75
  5. Step 5: Solve for x
    x = 8,268,616,667.75/104,877.18
  6. Step 6: Final answer
    x = 78,840.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.